<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
    <meta charset="utf-8" />
    <title>Home</title>
    <style>
        #iframeTop{
            width: 100%;
            height: 70px;
        }
        #iframeLeft{
            width: 15%;
            height: 600px;
            float: left;
        }
        #iframeContent{
            width: 85%;
            height: 600px;
        }
    </style>
<body>
<div>
    <iframe id="iframeTop" name="iframeTop" frameborder="0" src="top.html"></iframe>
    <iframe id="iframeLeft" name="iframeLeft" frameborder="0" src="left.html"></iframe>
    <iframe id="iframeContent" name="iframeContent" frameborder="0" src="content.html"></iframe>
</div>
</body>
</html>